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{{title|Accelerator}} | {{title|Accelerator}} | ||
− | An '''accelerator''' or an '''offload engine''' is a piece of specialized hardware circuitry that implements various functions in order to perform a set of operations with higher performance or greater energy efficiency than a [[general-purpose microprocessor]]. The use of accelerators by software to speed up various operations is called [[hardware acceleration]]. Accelerators are used to significantly improve the performance of certain workloads. They are often a separate component attached to a system, but may also be integrated directly into the processor | + | An '''accelerator''' or an '''offload engine''' is a piece of specialized hardware circuitry that implements various functions in order to perform a set of operations with higher performance or greater energy efficiency than a [[general-purpose microprocessor]]. The use of accelerators by software to speed up various operations is called [[hardware acceleration]]. Accelerators are used to significantly improve the performance of certain workloads. They are often a separate component attached to a system, but may also be integrated directly into the processor. |
− | + | Note that while an accelerator can also be a [[co-processor]], this isn't always the case. The distinction lies in how an accelerator interact with the [[host processor]]. Whereas a co-processor is typically connected to the internals of the host processor which then passes it instructions to execute, an accelerator is typically viewed as an independent I/O device which is programmed though an interface. | |
== Motivation & Overview == | == Motivation & Overview == | ||
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** '''[[Compression accelerator]]''' - accelerators that perform compression using various algorithms | ** '''[[Compression accelerator]]''' - accelerators that perform compression using various algorithms | ||
** '''[[Cryptographic accelerator]]''' - accelerators that perform various cryptography operations | ** '''[[Cryptographic accelerator]]''' - accelerators that perform various cryptography operations | ||
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** '''[[Graphics accelerator]]''' - accelerators used for the manipulation and creation of images | ** '''[[Graphics accelerator]]''' - accelerators used for the manipulation and creation of images | ||
** '''[[DSP accelerator]]''' - accelerators that performs algorithms used for the processing of digial signals | ** '''[[DSP accelerator]]''' - accelerators that performs algorithms used for the processing of digial signals | ||
* '''[[Programmable accelerator]]''' - accelerators that come in the form of an FPGA and can implement any function necessary | * '''[[Programmable accelerator]]''' - accelerators that come in the form of an FPGA and can implement any function necessary | ||
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[[Category:hardware acceleration]] | [[Category:hardware acceleration]] |